Home / 8,679.18-11,977.28-4,700.30

Finding the Fourth Proportional to 8,679.18, 11,977.28 and 4,700.30

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Solution

The fourth proportional to 8,679.18, 11,977.28 and 4,700.30 is: 6,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.18 : 11,977.28 = 4,700.30 : x
  2. Step 2: Convert to fraction form
    8,679.18/11,977.28 = 4,700.30/x
  3. Step 3: Cross multiply
    8,679.18x = 11,977.28 × 4,700.30
  4. Step 4: Simplify right side
    8,679.18x = 56,296,725.80
  5. Step 5: Solve for x
    x = 56,296,725.80/8,679.18
  6. Step 6: Final answer
    x = 6,486.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.